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Average government primary school class sizes by school size (2009-2024)

Created 25/06/2025

Updated 25/06/2025

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The class size audit is conducted in all NSW government primary, infant and central (primary grades only) schools in March each year. Data notes

Students attending schools for specific purposes (SSPs), students in support classes in regular schools and distance education students are excluded from average class size calculations.

The average class size for each year level is calculated from regular and multi-age classes that contain a student from that year level. This can result in a lower K-6 average class size than any individual year level.

From 2017, school size is based on primary enrolment rather than school classification.

Data from earlier years is not replaced in the Class Size fact sheet. Schools change size. Historical data displays the data that was correct in that year.

Refer to the individual class size factsheet publication for further information and policy context.

Data source Education Statistics and Measurement Unit, Centre for Education Statistics and Evaluation. Data quality statement The Class Size Audit Data Quality Statement addresses the quality of the Class Size Audit dataset using the dimensions outlined in the NSW Department of Education's data quality management framework: institutional environment, relevance, timeliness, accuracy, coherence, interpretability and accessibility. It provides an overview of the dataset's quality and highlights any known data quality issues.

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Additional Info

Field Value
Title Average government primary school class sizes by school size (2009-2024)
Language eng
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://data.gov.au/data/dataset/fa136426-0d98-419d-9379-a1b4731d8d64
Remote Last Updated 12/02/2025
Contact Point
NSW Department of Education
open.data@det.nsw.edu.au
Reference Period 01/01/2009 - 31/12/2024
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    147.0179,
    -32.1618
  ],
  "type": "Point"
}
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "Average government primary school class sizes by school size (2009-2024)". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-nsw-education-average-government-primary-school-class-sizes-by-school-size